Material-elevating apparatus



Sept. 2. 1924.

5 Sheets-She et l UATERIAL ELEVAT ING APPARATUS rusa oct. 27 192 s sheets-sneed 3 B. S. SNOW l MATERIAL ELEVATING APPARATUS Filed Oct.. 27, 1922 5 Sheets-Sheet 4 i275 Ue/zor ar 012 oza,

K 4 VAI/ h yf lf/ Sept. 2. 1924. 1,507,261 B. S. SNOW MATERIAL ELEVATING APPARATUS Filed Oct- 27. 1922 5 Sheets-Sheet 5 if i@ jizz/65232?? jar of? YOZU/ M @M gg/f5.

Patented Sept. 2, 1924.

omiso .STATES .PATENT DFH@ BARTON S. SNOW, OF BATAVIA, ILLINOIS, ASSIGNOR T0 T. W. SNOW CONSTRUCTION CO.; OE

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS... i -i l. .v

mA'rERIAL-nrisvn'rmo APPARATUS.

litigi., Application led October 27, 1922. Serial No. 597,326.

To all lwhom t may concern.' Be itknownthat I, BAR'ipN S. Snow, a citizen otrthe United "States, residing at ,.Batavia, in the county ofKane and State of Illinois, haveinvented a new, and useful Im- .prow/'ement in Material- Elevating Apparatus, ofwhich the ollowing is a specification. `My invention relates to apparatus of the general typecomrnonly used forelevating Lrnaterialsuch as, for example, coal, from a hopper. into which the materialmis dumped from railway cars located on tracks labove .the hopper, into ai storageA binabovethe tracks from which the material is permitted .to discharge as, for example, intothe tenders 4of. locomotives, this type of apparatus com- `prising .a` substantially vertically-operating bucket, or skip.i`o"r elevating,l the material into the uppermost hopper and power-operatedcable means for operating the bucket. One of my objects is to provide improvements-in apparatus of .the type above re- .ferred to,.and involving a charge-receiving receptacle. which operates to receive a charge from the hopper and elevate it to a position for discharge into the bucket or skip, and by which the bucket may be elevated substantially.to dumping position at a relatively high speed and the desired deceleration of the bucket at the end of its elevating move- .ment accomplished without .undueexpendr ture of power. Another object is to provide improvements whereby a relatively shallow pit -for receiving the bucket when in loading position may be provided. Another object of the invention is to provide for theautolnatic filling ot' the bucket. elevating it and dumping its contents into the uppermost hopper and thereafter lowering the bucket and. repeating the operation stated, all in an automatic manner. Another object is to provide in apparatus of the general type above referred to, a novel and simple construction of charge-receiving container and one which shall operate in a novel manner: and other objects as will be manifest from the following description.

Referring to the accompanying drawings:

Figure l is a view in vertical elevation of a railway coaling station equipped with my improvements, certain of the parts being `shown in elevation, this view showing the bucket in lowermost, loading, position and the parts associated therewith and the posi tions they assume in this position of the bucket'. Figure 2 isa View in end elevation ot' the structure shown in Fig. 1, certain parts of the structure being shown insebtion, the apparatus being `viewed lfrom theringlit hand side of Fig. 1. Figure 3 is `al section taken at the line 3-3 on Fig. land vie'viiedA in the direction of the arrows. ,Qlifigl'ire 2isis an enlarged elevational view of the lower part of the structure shown in Figs. 1 2, with certain parts sectioned, this ,View showing, hy ful] lines, the position occupied by` the parts cooperating with they bucket when A' the bucket` is rising but before it"rea ches dumping position, and by dotted iines` the positions assumed by these parts upon the and b v VFull lines the position occupied by these parts when the bucket reaches filling position.

The apparatus shown comprises a pit u'cket before the latter reaches loading position,`

`bucket reaching dumping position. Fi ure 5 l structure which extends below the level at i which the tracks, represented at 8 and on which the curs containing the material to be elevated are run, extend, this pit, which is represented :u t), containing a hopper 10 open at its upper end and across which the tracks S extend, this hopper' being provided for receiving the material from the cars. Rising from the ground adjacentthe pit 9 is a frame structure l1 on which is mounted a hopper 12 shown us provided at its outlet with spout-and-vulve mechanism.J represented at 13, for controlling the flow of material from the hopper 12 into the receptacle to be charged therewith, as, for example, a tender located on the track 1i. The hopper 12 and the control mechanism therefor may be ot' any suitable construction. and as this part of the apparatus is ot common construction detail description thereof is unnecessary. The framework 11. at the side of the hopper 12 opposite that at which the device 13 extends, projects upwardly above the hopper 12 which latter communicates with an inlet chute 15 and provides' the support and guidinggmeans for a vertically-movable bucket or s `p, represented at 16 and provided for the purpose of elevating material from the hopper 1() to a position in which it discharges through the inlet chute 15 into the bin 12. The last-referred-to portion of the framework 11 is provided at opposite sides of the chute 15 with pairs of vertical bars 17 spaced apart to provide guides for the bucket 16. The bucket 16 is of a construction commonly Vprovided in apparatus of this general type, this bucket being provided with a bail 18 pivotally connected at its lower end with the under side of the 'and the side bars 21 with ro1lers23 which extend into the vertical guide-ways 17 for guidance. lThe bucket, as shown, is of such ,'construction that it is overbalanced, tending to tilt on the cross-bar 20 of the bail, to the Aleft in Fig. 1 when in loaded position. The

bucket is provided at opposite sides with laterally-extending rollers 24 which bear, under the tilting action of the bucket, against the adjacent vertical uide surfaces 25 of uide bars 26 carried by the framework a one, the upper extremities of these guide bars being curved toward the hopper 12, as re resented at 27, and terminating in the su stantially horizontally-extending portions 28, whereby when the bucket 16 is elevated to its extreme upper position it will automatically tilt to the left in Fig. l at its pivotal connection with the bail 19 and dischar e its contents into the chute 15, and in the owering of the bucket will be automatically rocked to upright condition.

The cable which controls the vertical movement of the bucket 16 is represented at 29, this cable bein connected at one end with theupper en of the bail, as represented at 30. The cable extends upwardly from the bail and around a supporting sheave 31 journaled on the framework 11, and thence extends downwardly to a drum 32 upon which it is wound, the drum 32 bein a hoisting drum operated from any suitabe source of power as from the engine represented at 33. The cable 29 thence passes over a pulley 34 `journaled on the framework 11 and thence around pulleys 35 and 36 constituting a block-and-tackle, the pulley 36 being journaled on the framework 11 and the pulley 35 journaled in the upwardly-extending spaced arms 37 of a counterweight 38, the end of the cable 29 opposite the end connected with the bucket 16, as stated, being connected with the framework at" 39. The counterwei ht 38 is vertically movable, it being guide in its movement in any suitable way, as, for example, by means of the T-bars 40 supported on the framework 11 at opposite edges of the counterwelght and extending at portions thereof into vertical grooves 41 contained in opposite edges of the counterweight 38.

It will be understood from the fore oing description that the arrangement o the bucket, counterweight and cable mechanism connecting these parts is such that the counterweight required for producing the counterweighting function, viz., to substan` tially counterweight only the weight of the bucket plus one-half of the load carried by the bucket, is very much greater than where the counterweight is so connected direct with the bucket, through the cable mechanism, that it travels at the same speed as the bucket, the purpose of providing a relatively heavy oounterweight being hereinafter explained.

Cooperating with the hopper 10, the outlet of which is represented at 42, is mechanism for receiving a charge from this hopper, elevating the charge and thereafter dumping it into the bucket 16 when the latter is in the position represented in Fig. 1, a description of this mechanism being as follows: The mechanism referred to comprises the charge-receiving receptacle 43 shown as of general inverted hopper form, viz., to provide a closed bottom, upwardly-convergino walls 45 and 46 and substantially paralle side walls 47, the wall 45 containing at its upper end an opening 48 which, in the lowermost position of the receptacle 43, viz., the position represented by full lines in Fig. 4, registers with the outlet 42 of the hopper 10, the opposite inclined wall 46 being open at its lower portion, as represented at 46` this Wall being formed with angularlydisposed portions 49 and 50, the latter being connected with the lower edge of the inclined portion of the wall 46, as shown, whereby the receptacle 43 presents a spout-portion represented at 51. The receptacle 43 is provided with a depending frame structure 52 at which it is pivotally connected, as represented at 53, with the forward extremities of forwardly and downwardly projecting parallel bars 54 forming a part of a carriage structure, these bars being rividly connected, at their forward and rear ends, to the parallel side bars 55 of the carriage. The carriage also involves a cross-shaft 56 connected with the lower ends of the side bars 55 and equipped with wheels for a purpose hereinafter explained, the upper ends of the bar 55 also being provided with wheels 58. The carriage frame thus provided is in the form of a yoke, and for the purpose of stitlening the members 54 struts 59 connected with these members and with the side members 55are provided. The receptacle"4tis 'positioned-between the side bars 55 and between the o vposing bars 54 and 59, the frame membersA 2 'being located between the members 54 and 59, whereby the receptacle 43 is adaptedto be rocked on the carriage at the pivotal connection 53 therewith. The parts just'described are so" constructed and arranged that the center of gravity'of the rece tacle 43, whenfthe latteroccupi'esthe'norma position shown bythe full linesin Fi 1, extends to the left in Fig '4 whereby t e receptacle 43 tends to'r'otatein counterLclockwise directionvin thisiigure, it being held in the full line position-shownyby the engagement of itsbottom'plate'44 with the axle 56 of the carriage.

`'Ihe'apparatus also involves a pair of parallel, upqwardly-incliued tracks 60 located Within t epit 9 and extending substantially parallel with and in spaced relation to the front l'wall 61 lof the hopper 10,-`the'carriage forthe receptacleA 43 belhgmounted at the rllers'57`and 458 thereof, on these tracks and'alon which the carriage 'is movable. Eachtra'r 60 at its lower end, is provided with a stop 60 for engagement with the rollers 57 in thelowermo'st position ofthe carriage, viz., that shown by full lines in Fig. '4, in which position the receptacle 43 registers atits inlet 48 with the outlet 42 'of the ho per 10 and in such position receives a c ar' e of material'from this hopper,`each'trac 60being provided at its upper' end with afprojection 62 presenting upwardl converging slightly recessed surfaces `63ia1 64.

The rec'eptacle'43 is provided at its outlet 46* with apar of bars 65 located beneath the bottom 44 of the receptacle beyond the lateral sides* thereof, these bars beinfr pivotally supported on the ends of a s aft 66 secured to the underside of the receptacle. Thef'bottom wall i44 immediately above the inner `ends of the bars is slotted, as represented at 67, to permit these bars to freely rock in clockwise direction in Figs. 4 and 7. Secured to the bottom wall 44 to extend crosswise thereof below its under side, is an angle bar 68, the horizontal ila-nge of which extends Vinto such a-position, as shown, as t-o form an abutment for the inner ends of the bars 65 restrainino them against counterclockwise rotation in i s. 4 and 7, the purpose of the bars 65 being hereinafter described.

vThe receptacle 43 is connected, at opposite sides't-hereof, and to the left of the pivot 53` viewing thestructure as shown in Fig. 4` as represented at 69, with the lower ends of cables 69 which pass over pulleys 70 journaled` on the'frame of the structure. the other,depending, ends ofthese cables-being connected with the' ends of a cross-baril guidingly coniine'd at its ends in the guides 25-29, The cross-bar Tl is located belowA and in the path of movement of, the 'bucket 16, and operates as hereinafter described.

The receptacle 43, constructed as hereinbefore described, is, in the operation of the apparatus, moved from the full line, filling, position shown in Fig. 4, to the dotted position therein shown, and thereafter rocked on its pivot to discharge its contents into the bucket 16, and in moving from filling position, operates to cut through the material at the outlet 4:2 of the hopper l0. 1n order that this outlet shall be closed except when the receptacle 43 is being charged with material, l provide a slide valve which is movable into and out of a position in which this outlet is closed and operates automatically to close this outlet in the upward movement of the receptacle 43. The construction of slide valve shown involves a plate 72 which extends across the hopper outlet 42 and {iatwise opposes the under sides of channel bars 73 secured to the front wall of the hopper 10 and located at opposite sides thereof, the channels of these bars facing outwardly. The plate 72 is provided at each end with a pair of brackets74 in whichA rollers 75 are journaled, these rollers extending into the channels of the bars 73 and bearing, by rolling contact, upon the upper surfaces of the lower anges of these bars, whereby the `plate 72 is supported to be moved into and out-of a position in which the outlet 42 is closed, there being provided beneath the plate 72, a pair of anole irons 76 stationarily connected with the hopper l0 to aid in the supporting of the plate 72. The valve just described cooperates with weight and pulley mechanism which operates to move the valve to the closed position shown in Fig 7 and which yields to permit of the opening of the outlet 42 when the plate 72 is forced downwardly as hereinafter described The pulley and weight mechanism referred to involves a pair of' cables 77 each connected with one of the forward brackets at each side of the plate 72 and lthence extendingr over pulleys 78 and 79 secured to the hopper 10, the lower ends of these cables beingconnected with a weight 80.

The carriage upon which the receptacle 43 is p-ivoted. as stated, is connected at its upper end, at opposite sides thereof, with the lower ends of cables 81 which extend upwardly and over pulleys 82 jo-urnaled on a stationary part of the structure` the lower, depending. ends of these cables beiner connected with the ends of a cross-ba." 83 guidingly confined between vertical uprights 84 and the portion of the structure to which the T-bars 40 are connected, this cross-'bar being located below and in the path of movement Aof,'the counterweight llD 38. A description of the operation of the apparatus is as follows: Assuming the parts of the apparatus to be in a position in which the charge-receiving receptacle 43 is in lowermost position, 'as represented by full lines in Fig. 4, in which position it is in communication with the outlet 42 of the hopper 10 and thus receives a charge of material therefrom, the bucket 16 in the position of the receptacle 43, as stated, will be ascending and will be above the dotted position ci' .the bucket shownin Fig. 7. As the bucket 16 continues its upward movement toward dumping position, (the bucket upon reaching the upper end of the guide bar 25 automatically dumping the charge previously introduced therein into the chute 15), the counterweight 38 continues to descend, and as the counterweight nears the. limit of its lowermost movement it engages the ci'oss-!bar 83, forcing the latter downwardly with the result of drawing the carriage, on which the receptacle 43 is pivoted` in an upward direction along the tracksA 6() to a position in which the rollers 58 ride over the projections 62, and the carriage .assumes the dottedposition shown in Fig. 4, the engagement 'of Vthe rollers 58 with the projections 62 operating to hold the carriage in the raised position referred to. The bodily movement of the receptacle43, as stated, operates to cause the rear edge of the receptacle to cut through the material located at the outlet 42 of the bin 10, the gate device 72, under the action of the weight 80, closely following the movement of the receptacle 43 and serving to close the outlet 42.

'Following the dumping of the contents of the bucket 16 into the chute 15, the bucket descends and the counterweight 38 rises, the carriage, and the receptacle 43 pivoted thereon, remaining in elevated position. As the bucket 16 nears the limit of its descent, it engages the cross-bar 71 with the result of rotating the receptacle 43 at its pivotal connection with the carriage, to the full line position shown in Fig. 7 1n which position the bucket 16 extends beneath the outlet of the receptacle 43 in a position to receive the charge from the receptacle which slides into the bucket 16. When the bucket 16 is operated to hoist it to dumping position, the bucket, by engaging with the outer ends ol' the bars which, in the discharging position of the receptacle 43 overlap the upper edge of the bucket 16, as shown in Fig. 7, first rocks the receptacle 43 from the full line position shown in Fig. 7 to the dotted line position therein shown and in continuing its ascent, operates, by reason of the engagement of the rear end of the receptacle 43 with the shaft 56, to bodily rock the carriage upon which the receptacle 43 is pivoted, in a rearward'and upward direction,

the carriage turning about the rollers 57 as a pivot, Thus tilting the ,carri e .carries rthe rollers 58 to a position above .t 1e projectiony 62, and Vas thecounterweight-38 extends out of engagement with the cross-bar-E,i the car-` riage, together with the receptacle 43 piv, otedVv thereon, thereupon runs down the. tracks 60 to the dotted position as fast as bar 71 follows .the bucket 16 in ,the upward movement of the latter, the gate device controlling the outlet 42 of fthe hopper 10 being forced,.a einst theaction of the weight SQ, to the .fu line position shown in Fig. 4, in which the outlet 42 is open, byreason of the engagement ofthe receptacle 43 therewith. 4

Itvrill be understood from .the foregoing that the movement of the receptacle 43 from lower, filling, position to upper, discharging, position is effected by the Vforce exerted by the counterweight 38 in lowering, it being possibley by providing theblock-and-tackle mechanism .hereinbefore described, to provide this counterweight of sufficient weight to actuate the receptacle 43as vstated without cxerting'an undue amount of lifting force onV the. bucket 16, it being desirable that the counterwei ht 38 substantially counterbalance cnrlyt e weight olf' the bucket and onehalf the load carried :by the bucket.

The arrangement shown also presentsf the advantage that `inasmuch as the counter- Weight 38 does not engage the cross-bar 83 until the bucket 16 nears Athe point at which the latterr discharges, and as the weight presented by the charged receptacle 43 is relatively great, the bucket 16 is automatically slowed down before it reaches dis charge position. Thus the bucket may be raised at relatively high speed and the speed of its movement is automatically reduced to the desired degree before it reaches dumping position. Furthermore, the counterweight 38 being compounded as explained, by the block-and-tackle, it moves relatively slowly while the bucket 16 moves rapidly, and thus it acts upon the charging receptacle, to raise the latter, at a slow and positive speed.

W'hile I have illustrated and described a particular construction embodying my invention, I do not wish to be understood as intending to limit it thereto as the same may be variously modified and altered without departing from the spirit of my invention.

What I claim as new and vdesire to secure by Letters Patent is:

1. In material-elevating apparatus, the combination of a hopper for the material to be elevated, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage t0 move thereon into a position in which its contents may discharge therefrom, a movable element into which said receptacle discharges, and means operating responsive to the movement of said element for effecting movement of said receptacle on said carriage to a position in w ich its contents may discharge.

2. In material-elevating` apparatus, the combination of a hopper for the material to be elevated,4 an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom, a movable element into which said receptacle discharges, and means operating responsive to the movement of said element for effecting the elevating of said carriage to elevate said receptacle for delivery into said element when moved relative to said carriage.

3. In material-elevating apparatus, the combination of a hopper for the material to be elevated, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a p0- sition in which its contents may discharge therefrom, a movable element into which said receptacle discharges, means operating responsive to the movement of said element for effecting movement of said receptacle on said carriage to a position in which its contents may discharge, and means operating responsive to the movement of said element for effecting the elevatin of said carriage to elevate said receptae for deliv- -ery into said element when moved relative .to said carriage.

4. 'In material-elevating apparatus, the combination of a hopper -for the material to be elevated, an upwardly traveling carriage, a receptacle for receiving and elevating material 1from said hopper and mounted on said carriage to move thereon into 'a position in which its contents ma)7 discharge therefrom, a movable element into which said receptacle discharges, means operating responsive to the movement of said element for effecting the elevating of said carriage to elevate said receptacle for delivery into `said element when moved relative to said .combination of a hopper for ,the material to be elevated, an Iu pwardly traveling carriage, areoeptacle `for receiving and elevating material from .said hopper and mounted Vonssaid.carriagzge to move thereon into a position in which its .contents may discharge ithererom, :a movable .element into which .said receptacle discharges, and means operated by said element in moving toward lillreceptacle on said carriage to a position in which its contents may discharge.

6, In material-elevating apparatus, the combination of a hopper for the material to be elevated, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom, a movable element into which said receptacle discharges, means operated by said element in moving toward filling position for effecting movement of said receptacle on said carriage to a position in which its contents may discharge, and means operating responsive to the movement of said "if element for effecting movement of said receptacle on said carriage out of a position in which its contents discharge.

7. In material-elevating apparatus, the combination of a hopper for the material to be elevated, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom, a movable ,element into which said receptacle discharges, means operated Vby Isaid element in moving toward filling position for eiiecting movement of said receptacle on said carriage to a position in which its contents may discharge, and means operated by said element in moving toward dumping position for effecting movement of said receptacle on said carriage out of a position in which its contents discharge.

8. In material-elevating apparatus, the combination of a hopper for the material to he elevated, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom, a movable element into `which said receptacle discharges. means operating responsive to the movement of said element for effecting the elevating of said carriage to elevate said receptacle for delivery into said element when moved relative to said carriage, means releasably holding said carriage in elevated position, and means operated by said element to release said carriage for descent to a position in which said receptacle may receive material from said hopper.

9. In .material-elevating apparatus, ythe combination of a hopper for the material to he elevated, an upwardly traveling carriage, a receptacle for receiving and .elevating material from said hopper and mounted on said carriage to move thereon into a position in whiclrits contents may discharge therefrom, a movable element into which said receptacle discharges, means operating ring position for electing movement of said responsive to the movement of said element for effecting the elevating of said carriage to elevate said receptacle for delivery into said element when moved relative to said f f carriage,` means releasably holding said carriage 1n elevated position, means operated by said element in moving toward filling position for effecting movement of said receptracle-on said carriage to a position in which its contents may discharge, and means operated by said element for releasing said carriage for descent to a position in which said receptacle is charged from said hopper.

l0. VIn material-elevating apparatus, the

combination of a hopper for the material to beelevated, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom, a movable element into which said receptacle discharges, means operating responsive to the movement ofsaid element for e'ecting the elevatingof said carriage toielevate said. receptacle for delivery into said element when -moved relative to said carriage, meansreleasably holding said carriage in elevatedposition,and means operated by said element in moving toward filling positionfor effecting movement of said receptacle on said carriage to a position. in W ich its contents discharge, said re- :ceptacle when in said last-named position extending into a position in which said element in ascending moves said receptacle on said carriage out of `said last-named position.and thro-ugh themedium of said receptacle releases said carriage for descent to a position in which said receptacle is charged from said hopper.

1l. In material-elevating apparatus, the combination of a hopper for the material lo be elevated and provided with an outlet, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thern into a position in which its contents may dischar e therefrom, said carriage being movable into and out of a position in which said receptacle re isters with said hopper-outlet, a movable e ement into which said receptacle discharges, means for actuating said carria e, means for moving said receptacle on sai carriage, and means operating automatically to close said hopper-outlet in the movement of said recep- Atacle out of registration with the latter and to open said outlet to said receptacle in the movement of the latter into registration with said outlet.

'12. In material-elevating apparatus, the

y combination of a hopper for the material to rbe elevated, a bucket for elevatin the material, hoisting means for said ucket, a

' counter-Weight for said bucket, an upwardly ing and elevating material from said hopper and' mounted on said carriage to move thereon into a position in which its contents may discharge therefrom,and means actuated by said counter-Weight in descending for moving said carriage into raised position.

13. ln material-elevating apparatus, the combination of a hopper for the material to be elevated, a bucket. for elevating the material, hoisting means for said bucket, a counter-Weight for said bucket, an inclined guiding support, a carriage supported on and movable along said support, a receptacle for receiving and elevating material vfrom sa-id hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom into said bucket, and means actuated by said counter-Weight in descending for moving said carriage into raised position.

14. In material-elevating apparatus, the combination of a hopper for the"material to be elevated, a bucket for elevating the material, hoistingmeans for said bucketfa counter-Weight for said bucket, thebonnections between said counter-weight and bucket. being such that said counter-wei' ht travels at a reduced speed compared vvith the bucket, an upwardly traveling carriage, g

into said bucket, and means actuated by said A counter-Weight in descending for effecting the elevating of said carriage to elevate said receptacle for delivery into said'bucket, when movedrelative to said carriage.

l5. ln material-elevating apparatus, the combination of a hopper for the material to he elevated, a bucket tor. elevating the material, hoisting means for said bucket, a counter-weight for said bucket, anfup'- wardly traveling carriage, a receptacle for receiving and elevating material from 'said l'iopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom, means actuated by said counter-weight in 'descending for moving said carriage linto raised position, and means releasably 4holding said carriage in raised position ywhen the counter-Weight rises. l

16. In material-elevating apparatus, the combination of a hopper for the material to be elevated, a bucket for elevating the material, hoisting means for said bucket, a counter-Weight for said bucket, an up- Wardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on saidcarriage to move thereon into a position in which its contents may discharge therefrom, means actuated by said counter-Weight in descending for moving said carriage into raised position and means releasably holding said carriage in raised position When the counter-weight rises, and releasable by the action of said bucket in ascending, to permit said carriage and receptacle to descend` 17. In material-elevating apparatus, the combination of a hopper for the material to be elevated, a bucket for elevating the material, hoisting means for said bucket, a counter-Weight for said bucket, an uprvardlv traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom, means actuated b v said counter-Weight. in descending for moving said carriage into raised position, and means operating responsive to the movement of said bucket for elfecting movement of said receptacle on said carriage to a position in which its contents may discharge therefrom.

18. In material-elevating apparatus, the combination of a hopper for the material to be elevated, a bucket for elevating the material, hoisting means for said bucket, a counter-weight for said bucket, an upwardlyT traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom, means actuated by said counter-Weight in descending for moving said carriage into raised position, and means actuated by said bucket in descending for moving said receptacle on said carriage into a position in Which its contents may discharge therefrom.

19. In material-elevating apparatus., the combination of a hopper for t-he material to be elevated, a bucket for elevating the material, hoisting means for said bucket. a counter-weight for said bucket. an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in which its contents may discharge therefrom` means actuated by said counter-Weight in descending for moving said carriage into raised position, and means actuated bv said bucket in descending for moving said receptacle on said carriage into a position in which its contents mai` discharge therefrom. said bucket operating in ascending toward dumping position to move said receptacle on said carriage out of a position in Which its contents discharge therefrom.

20. In n'iaterial-elevating apparatus, the combination of a hopper for the material to be elevated, a bucket. for elevating the material, hoisting means for said bucket, a counter-Weight for said bucket, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted on said carriage to move thereon into a position in Which its contents may discharge therefrom into said bucket, means operate-d by said counter-weight in descending for moving said carriage from a position in which the receptacle thereon receives a charge from said hopper into raised position, means releasably holding said carriage in raised position during the ascent of said counter-Weight, and means operated by said bucket in moving toward filling position, to move said receptacle on said carriage into a position in which its contents may discharge into said bucket, the last referred to position occupied b said receptacle, relative to said bucket, being such that said bucket in ascending moves said receptacle on said carriage out of a position in which its contents discharge and, through the medium of said receptacle, releases said carriage for descent to a position in which said receptacle is charged from said hopper.

21. In material-elevating apparatus, the combination of a hopper for the material to be elevated, a bucket for elevating the material, hoisting means for said bucket, a counter-Weight for said bucket, the connections between said counter-weight and bucket being such that said counter-Weight travels at a reduced speed compared with the bucket, an upwardly traveling carriage, a receptacle for receiving and elevating material from said hopper and mounted o-n said carriage to move thereon into a position in which its contents mani7 discharge therefrom. and means actuated by said counter-weight in descending for moving said carriage into raised position.

BARTON S. SNOW. 

